<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <style>
        
    </style>
</head>
<body>
    
</body>
<script>

    // console.log( "hello world" )
    // console.log( '{name:"admin"}' )
    // console.log( 'function(){}' )
    // console.log( "null" )
    // console.log( 12313 )
    // console.log( true )
    // console.log( {name:"admin"} )
    // console.log( function(){} )
    // console.log( undefined )
    // console.log( null )
    

    console.log( typeof "hello world" )
    console.log( typeof '{name:"admin"}' )
    console.log( typeof 'function(){}' )
    console.log( typeof "null" )
    console.log( typeof 12313 )
    console.log( typeof NaN )
    console.log( typeof true )
    console.log( typeof {name:"admin"} )
    console.log( typeof ["hello", "world"] )
    console.log( typeof function(){} )
    console.log( typeof undefined )
    console.log( typeof null )



    
</script>
</html>